Home / 13,895.12-20,842.68-8,089.04

Finding the Fourth Proportional to 13,895.12, 20,842.68 and 8,089.04

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Solution

The fourth proportional to 13,895.12, 20,842.68 and 8,089.04 is: 12,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.12 : 20,842.68 = 8,089.04 : x
  2. Step 2: Convert to fraction form
    13,895.12/20,842.68 = 8,089.04/x
  3. Step 3: Cross multiply
    13,895.12x = 20,842.68 × 8,089.04
  4. Step 4: Simplify right side
    13,895.12x = 168,597,272.23
  5. Step 5: Solve for x
    x = 168,597,272.23/13,895.12
  6. Step 6: Final answer
    x = 12,133.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.